Game stalling on mobile

For the past few days my Hearthstone has been consistently stalling whilst matchmaking in any play mode (including solo), and also at boot up. As it’s stalling (not crashing) if the game is loaded I can still access friends menu and even chat.

It feels very much like when I have had connectivity issues, however other applications like web broswer that will also be affected are not (and can also chat which doesn’t work during connectivity issues).

I constantly have to restart the game in order to play as it is always occurs and is just a matter of how many matches I can get in before it stalls again. At most I can occasionally play 3 games before a stall, and most often only one game or none.

This is extremely frustrating.